Originally defined as the ratio between the circumference of a circle and its diameter, pi — written as the Greek letter π — appears throughout mathematics, including in areas that are completely ...

Happy Pi Day! We celebrate pi on March 14 because 3-14 gives the first three digits of this famous number. But what’s the big deal about pi anyway? Why does it get a day? Well, for starters, it ...

SAN FRANCISCO -- Every March 14, mathematicians, scientists and math lovers around the world celebrate Pi Day, a commemoration of the mathematical sign Pi. That's because the date written numerically ...

Pi Day is a favorite holiday for both food lovers and mathematicians. For the foodies, the reasoning is simple. Pi Day brings ...

Egyptians believed that the pyramids of Giza were like math marvels, built on the principles of pi. The fun fact about this ...

Pi Day 2026: March 14 is celebrated every year as Pi Day to commemorate the Mathematical constant Pi. The day also marks the birth anniversary of physicist Albert Einstein and is observed as a ...